Update HerculesCompiler submodule

* HerculesCompiler d505f4c...304d82e (3):
  > Fix for newBackedge when SCEV could not be computed.Added HERCULES_FORCE_COMPATIBLE environment variable to avoid PREMization of certain functions
  > Removed CPU lock from GPUguard
  > Added option for using GPUguard in libpremnotify-cpu

diff --git a/HerculesCompiler b/HerculesCompiler
index d505f4c4319d096d5ec0aff0300dc33734f36b9d..304d82ef58e25ae450866936c5bacc1b7bb7df71 160000 (submodule)
--- a/HerculesCompiler
+++ b/HerculesCompiler
@@ -1 +1 @@
-Subproject commit d505f4c4319d096d5ec0aff0300dc33734f36b9d
+Subproject commit 304d82ef58e25ae450866936c5bacc1b7bb7df71